process-single-event

Arguments: &optional no-wait

Reads and processes a single event. This function may be useful to
control the rate of event processing, or in the listen functions of
some types of stream. Returns t if an event was processed, nil if not.

No-wait determines the behavior when there is not currently a pending
event to process. If true, then
process-single-event returns nil immediately;
if nil, it waits until an event arrives.

See event-loop,
which provides a loop with calls for processing events and additional
functionality for managing threads. In general, you should use event-loop in preference
to writing custom loops usign process-single-event.

Copyright (c) 1998-2012, Franz Inc. Oakland, CA., USA. All rights reserved.Documentation for Allegro CL version 9.0. This page was not revised from the 8.2 page.Created 2012.5.30.